Torque Tube Electric Welding Tooling and Its Working Method

Abstract

The present invention belongs to the technical field of machine tools, and particularly relates to a welding tooling for a torsion tube and its working method. The welding tooling for the torsion tube includes: a rotating cylinder; a first clamping mechanism located at one end inside the rotating cylinder and including: a first moving ring and a plurality of first clamping components, wherein the first moving ring is adapted to insert the torsion tube; a second clamping mechanism located at the other end inside the rotating cylinder and including: a second moving ring and a plurality of second clamping components; a driving mechanism connected to the rotating cylinder and adapted to drive the rotating cylinder to rotate self - sufficiently so that the first moving ring moves towards the second moving ring. The welding tooling for the torsion tube and its working method clamp the torsion tube by the movement of the first moving ring and send the torsion tube into the second moving ring; at the same time, the second clamping components pre - clamp the torsion tube by the movement of the second moving ring, and then the torsion tube is arched by the differential movement of the first moving ring and the second moving ring, thereby increasing the welding end face of the torsion tube.

Description

Technical Field

[0001] The present invention belongs to the technical field of machine tools, specifically relates to a workpiece clamping device, and particularly relates to a torsion tube electric welding tooling and its working method. Background Art

[0002] A torsion tube is a tubular structural component that can withstand and transmit torque; it is usually made of high-strength materials to ensure sufficient strength and rigidity when transmitting torque.

[0003] One end of the torsion tube needs to be welded with an operating head. During welding, due to the small diameter of the end of the torsion tube, it is easy to cause false welding.

[0004] Therefore, how to solve the technical problem that false welding will occur during the welding of a torsion tube with a small end diameter is an urgent problem to be solved by those skilled in the art.

[0005] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide a torsion tube electric welding tooling and its working method.

[0007] In a first aspect, the embodiments of the present disclosure provide a torsion tube electric welding tooling, including: a rotating cylinder; a first clamping mechanism located at one end inside the rotating cylinder, and including: a first moving ring and a plurality of first clamping components, the first moving ring is adapted to insert a torsion tube; a second clamping mechanism located at the other end inside the rotating cylinder, and including: a second moving ring and a plurality of second clamping components; a driving mechanism connected to the rotating cylinder and adapted to drive the rotating cylinder to rotate self - sufficiently to make the first moving ring move towards the second moving ring; wherein the first moving ring drives each first clamping component to clamp the torsion tube through movement, and then drives the torsion tube to move synchronously; after clamping the torsion tube, the first moving ring drives the second moving ring to move through movement, and makes the torsion tube pass through the second moving ring through differential movement with the second moving ring. At the same time, the second moving ring drives each second clamping component to pre - clamp the torsion tube through movement, and then makes the end face of the torsion tube inclined through differential movement with the first moving ring.

[0008] In an optional embodiment, the first moving ring is sleeved on a guiding shaft and is threadedly connected to the rotating cylinder; wherein, the driving mechanism is adapted to drive the rotating cylinder to rotate self - sufficiently to make the first moving ring move along the guiding shaft.

[0009] In an alternative embodiment, a first guiding inclined surface is provided on the inner wall at one end of the rotating cylinder; the first clamping assembly is arranged along the radial direction of the first moving ring and includes: a first clamping member and a first return spring sleeved on the first clamping member; the first return spring is adapted to push the outer end of the first clamping member against the inner wall of the rotating cylinder; wherein, the first moving ring drives each first clamping member to move along the radial direction of the first moving ring, so that the inner ends of the first clamping members clamp the torsion tube.

[0010] In an alternative embodiment, a second guiding inclined surface is provided on the inner wall at the other end of the rotating cylinder; the second clamping assembly is arranged along the radial direction of the second moving ring and includes: a second clamping member and a second return spring sleeved on the second clamping member; the second return spring is adapted to push the outer end of the second clamping member against the inner wall of the rotating cylinder; wherein, the second moving ring drives each second clamping member to move along the radial direction of the second moving ring, so that the inner ends of the second clamping members pre-clamp the torsion tube.

[0011] In an alternative embodiment, a third spring is sleeved on the guiding shaft, and the third spring is located between the first moving ring and the second moving ring; wherein, the elastic coefficient of the third spring is smaller than that of the second return spring, so that the first moving ring and the second moving ring move at different speeds.

[0012] In an alternative embodiment, a plurality of guiding plates are provided on the side of the second moving ring facing the first moving ring; the guiding plates correspond to the second clamping members one by one; a fourth return spring is provided on the guiding plate, and the fourth return spring is adapted to push the guiding plate against the second clamping member; wherein, the second clamping member drives the guiding plate to move radially to guide the torsion tube to extend into the second moving ring.

[0013] In an alternative embodiment, after the inclined end face of the torsion tube is welded, the driving mechanism is adapted to drive the rotating cylinder to rotate in the reverse direction so that the first moving ring and the second moving ring move in a reset manner; wherein, the first moving ring straightens the arched torsion tube by moving at a different speed to inspect the welding quality.

[0014] In a second aspect, an embodiment of the present disclosure further provides a working method for a torsion tube electric welding tooling, including: driving the rotating cylinder to rotate through a driving mechanism, so that the first moving ring moves towards the second moving ring; driving each first clamping assembly to clamp the torsion tube through the movement of the first moving ring, and then driving the torsion tube to move synchronously; after clamping the torsion tube, pushing the second moving ring to move through the movement of the first moving ring, and making the torsion tube pass through the second moving ring by moving at a different speed from the second moving ring, and at the same time driving each second clamping assembly to pre-clamp the torsion tube through the movement of the second moving ring, and then making the end face of the torsion tube inclined by moving at a different speed from the first moving ring.

[0015] In an alternative embodiment, the first moving ring and the second moving ring are differentially moved by setting the elastic coefficient of the third spring between the first moving ring and the second moving ring to be less than the elastic coefficient of the second return spring in the second clamping assembly.

[0016] In an alternative embodiment, the welding quality of the torsion tube is inspected by the return movement of the first moving ring.

[0017] The beneficial effect of the present invention is that the torsion tube electric welding tooling and its working method clamp the torsion tube by the movement of the first moving ring and send the torsion tube into the second moving ring; at the same time, the second clamping assembly pre-clamps the torsion tube by the movement of the second moving ring, and then the torsion tube is arched by the differential movement of the first moving ring and the second moving ring, thereby increasing the end face welding area of the torsion tube.

[0018] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structure specifically pointed out in the specification and the drawings.

[0019] To make the above objectives, features, and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby given, and in conjunction with the accompanying drawings, the following detailed description is provided. Description of the Drawings

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of a torsion tube electric welding tooling provided by an embodiment of the present disclosure;

[0022] Figure 2 Structural schematic diagram inside a rotating cylinder provided by an embodiment of the present disclosure;

[0023] Figure 3 Structural schematic diagram when a torsion tube extends into the first moving ring provided by an embodiment of the present disclosure;

[0024] Figure 4 Structural schematic diagram when the first clamping assembly clamps the torsion tube provided by an embodiment of the present disclosure;

[0025] Figure 5 Structural schematic diagram when the second clamping assembly pre-clamps the torsion tube provided by an embodiment of the present disclosure;

[0026] Figure 6 Schematic diagram of the structure when the torsion tube arches provided by the embodiments of the present disclosure.

[0027] In the figure:

[0028] Rotating cylinder 1, guide shaft 11, first guide slope 12, second guide slope 13;

[0029] First clamping mechanism 2, first moving ring 21, first through hole 211, first clamping assembly 22, first clamping member 221, first return spring 222;

[0030] Second clamping mechanism 3, second moving ring 31, second through hole 311, second clamping assembly 32, second clamping member 321, second return spring 322, third spring 33, guide plate 34, fourth return spring 341;

[0031] Driving mechanism 4;

[0032] Torsion tube 5. Specific implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, in the drawings, for the purpose of effectively describing the technical content, the thickness of components may be exaggerated or reduced.

[0035] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0036] As Figure 1 、 Figure 2 shown, at least one embodiment provides a torsion tube electric welding tooling, including: a rotating cylinder 1 and a driving mechanism 4. The two ends inside the rotating cylinder 1 are respectively provided with a first clamping mechanism 2 and a second clamping mechanism 3. The driving mechanism 4 drives the rotating cylinder 1 to rotate self - so that the first clamping mechanism 2 moves towards the second clamping mechanism 3.

[0037] As Figure 3As shown, in some embodiments, the first clamping mechanism 2 includes: a first moving ring 21 and a plurality of first clamping components 22 arranged radially along the first moving ring 21; wherein, the side wall of the first moving ring 21 is threadedly connected to the inner wall of the rotating cylinder 1, and the first moving ring 21 is sleeved on at least two guide shafts 11.

[0038] Specifically, the center of the first moving ring 21 is a first through hole 211. One end of the torsion tube 5 is inserted into the first through hole 211, and then the driving mechanism 4 is controlled to drive the rotating cylinder 1 to rotate self - axially along the axis of the rotating cylinder 1. At this time, since the first moving ring 21 is threadedly connected to the rotating cylinder 1 and the first moving ring 21 is restricted by the guide shafts 11, the first moving ring 21 will move along the guide shafts 11.

[0039] In this embodiment, the first moving ring 21 drives each first clamping component 22 to move radially through movement, thereby clamping the torsion tube 5 located in the first through hole 211, and then driving the torsion tube 5 to move synchronously.

[0040] As Figure 3 shown, in some embodiments, the second clamping mechanism 3 includes: a second moving ring 31 and a plurality of second clamping components 32 arranged radially along the second moving ring 31; wherein, the second moving ring 31 and the first moving ring 21 are jointly sleeved on the guide shafts 11.

[0041] Specifically, the center of the second moving ring 31 is a second through hole 311, and both the second moving ring 31 and the first moving ring 21 are sleeved on two guide shafts 11.

[0042] In this embodiment, after the first clamping component 22 clamps the torsion tube 5, the first moving ring 21 moves to push the second moving ring 31 to move through movement, and the torsion tube 5 passes through the second through hole 311 of the second moving ring 31 through differential movement with the second moving ring 31; meanwhile, the second moving ring 31 drives each second clamping component 32 to pre - clamp the torsion tube 5 located in the second through hole 311 through movement, and then the torsion tube 5 is arched through differential movement between the second moving ring 31 and the first moving ring 21, that is, the welding end face of the torsion tube 5 is inclined.

[0043] As Figure 4 shown, in some embodiments, a first guiding inclined surface 12 is provided on the inner wall of one end of the rotating cylinder 1; the first clamping component 22 includes: a first clamping member 221 and a first return spring 222 sleeved on the first clamping member 221; the first return spring 222 pushes the outer end of the first clamping member 221 to abut against the inner wall of the rotating cylinder 1.

[0044] Specifically, during the movement of the first moving ring 21, the first clamping member 221 is forced to move radially along the first moving ring 21, that is, towards the first through hole 211, so as to clamp the torsion tube 5 located in the first through hole 211. Subsequently, the torsion tube 5 follows the first moving ring 21 towards the second clamping mechanism 3.

[0045] As Figure 4 shown, in some embodiments, a second guiding inclined surface 13 is provided on the inner wall of the other end of the rotating cylinder 1; the second clamping assembly 32 includes: a second clamping member 321 and a second return spring 322 sleeved on the second clamping member 321; the second return spring 322 pushes the outer end of the second clamping member 321 against the inner wall of the rotating cylinder 1.

[0046] As Figure 5 shown, specifically, after the first clamping member 221 clamps the torsion tube 5, the first moving ring 21 moves to push the second moving ring 31 to move, so that the second clamping member 321 is forced to move radially along the second moving ring 31, that is, towards the second through hole 311, until the inner ends of the second clamping members 321 pre-clamp the torsion tube 5.

[0047] In this embodiment, the pre-clamped state is: when the end of the torsion tube 5 is stressed, it no longer moves relative to the second moving ring 31, but will be distorted, so that the welding end face is inclined.

[0048] As Figure 4 shown, in some embodiments, a third spring 33 is sleeved on the guiding shaft 11, and the third spring 33 is located between the first moving ring 21 and the second moving ring 31; wherein, the elastic coefficient of the third spring 33 is less than the elastic coefficient of the second return spring 322.

[0049] In this embodiment, due to the different elastic coefficients of the third spring 33 and the second return spring 322, therefore, during the process of the first moving ring 21 pushing the second moving ring 31 to move, the first moving ring 21 needs to move a longer distance to push the second moving ring 31 to move a short distance, that is, the first moving ring 21 and the second moving ring 31 move at different speeds.

[0050] As Figure 5 shown, in some embodiments, a plurality of guiding plates 34 are provided on the side of the second moving ring 31 facing the first moving ring 21; the guiding plates 34 correspond to the second clamping members 321 one by one; a fourth return spring 341 is provided on the guiding plate 34, and the fourth return spring 341 pushes the guiding plate 34 against the second clamping member 321.

[0051] In this embodiment, since the torsion tube 5 has a certain flexibility and cannot be inserted straight into the first moving ring 21, it cannot be coaxial with the first moving ring 21. Therefore, by providing the guide plate 34, the guide plate 34 is driven to move synchronously during the radial movement of the second clamping member 321, so that the distance between the guide plates 34 gradually decreases, that is, it guides the end of the torsion tube 5 to extend into the second through hole 311.

[0052] As Figure 6 shown, in some embodiments, after the second clamping member 321 on the second moving ring 31 pre-clamps the torsion tube 5, the first moving ring 21 continues to push the second moving ring 31 to move, so that the torsion tube 5 arches through the differential movement of the two, that is, the end face of the torsion tube 5 is inclined, thereby increasing the welding area.

[0053] In some embodiments, after welding the inclined end face of the torsion tube 5, the driving mechanism 4 drives the rotating cylinder 1 to reverse to reset the first moving ring 21 and the second moving ring 31.

[0054] In this embodiment, during the reset movement, since there is still a differential movement between the first moving ring 21 and the second moving ring 31, the first moving ring 21 will pull the arched torsion tube 5, so that the quality of the welding surface can be inspected.

[0055] In some embodiments, optionally, the driving mechanism 4 includes: a motor and a gear ring. The gear ring is connected to the rotating cylinder 1, and the motor drives the gear ring to rotate, so that the rotating cylinder 1 rotates accordingly.

[0056] At least one embodiment also provides a working method of a torsion tube electric welding tooling, including: driving the rotating cylinder 1 to rotate through the driving mechanism 4 so that the first moving ring 21 moves towards the second moving ring 31; driving each first clamping assembly 22 to clamp the torsion tube 5 through the movement of the first moving ring 21, and then driving the torsion tube 5 to move synchronously; after clamping the torsion tube 5, pushing the second moving ring 31 to move through the movement of the first moving ring 21, and making the torsion tube 5 pass through the second moving ring 31 through the differential movement with the second moving ring 31, and at the same time driving each second clamping assembly 32 to pre-clamp the torsion tube 5 through the movement of the second moving ring 31, and then making the end face of the torsion tube 5 inclined through the differential movement with the first moving ring 21.

[0057] In some embodiments, by setting the elastic coefficient of the third spring 33 between the first moving ring 21 and the second moving ring 31 to be less than the elastic coefficient of the second return spring 322 in the second clamping assembly 32, the first moving ring 21 and the second moving ring 31 move differentially.

[0058] In some embodiments, the welding quality of the torsion tube 5 is inspected by the reset movement of the first moving ring 21.

[0059] For the specific structure and implementation process of the torsion tube electric welding tooling, refer to the relevant descriptions in the above embodiments, which will not be elaborated here.

[0060] In summary, for this torsion tube electric welding tooling and its working method, the movement of the first moving ring 21 causes the first clamping assembly 22 to clamp the torsion tube 5, and the torsion tube 5 is sent into the second moving ring 31. At the same time, the movement of the second moving ring 31 causes the second clamping assembly 32 to pre-clamp the torsion tube 5. Subsequently, the differential movement of the first moving ring 21 and the second moving ring 31 causes the torsion tube 5 to arch, thereby increasing the welding end face of the torsion tube 5.

[0061] In this document, when it is mentioned that the first component is located on the second component, this may mean that the first component can be directly formed on the second component, or a third component can be interposed between the first component and the second component.

[0062] In this document, when an element or layer is referred to as "being located on", "being joined to", "being connected to", "being attached to" or "being coupled to" another element or layer, it can be directly located on, joined, connected, attached or coupled to the other element or layer, or there may be intermediate elements or layers. In contrast, when an element is referred to as "directly on another element or layer", "directly joined to", "directly connected to", "directly attached to" or "directly coupled to" another element or layer, there may be no intermediate elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" vs. "directly between", "adjacent" vs. "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items.

[0063] In this document, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0064] The terms used herein are for describing particular exemplary configurations only and are not intended to be limiting. As used herein, the singular articles "a", "an", and "the" may also be intended to include the plural forms, unless the context clearly indicates otherwise. The terms "comprising", "including", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as necessarily requiring them to be performed in the particular order discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps may be employed.

[0065] As used herein, phrases such as "in one embodiment", "according to an embodiment", "in some embodiments", etc., generally refer to the fact that the particular feature, structure, or characteristic after the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example", "exemplary", etc. are used "as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of the terms "example", "exemplary", etc. is intended to present concepts in a concrete manner.

[0066] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0067] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first", "second", and other numerical terms used herein do not imply an order or sequence, unless the context clearly indicates otherwise. Thus, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or section discussed above may be referred to as the second element, component, region, layer, or section.

[0068] Spatially relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper", etc., may be used herein for ease of description to describe the relationship of one element or feature to another element or feature as illustrated in the figures. In addition to the orientation depicted in the figures, spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is turned over, an element described as "beneath" or "below" other elements or features will be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an above and a below orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein are to be interpreted accordingly.

[0069] In the foregoing discussion, unless otherwise specified, when used to describe a numerical value, the terms "about", "approximately", "substantially", etc. mean a variation of + / − 10% of that value.

[0070] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant workers can, without departing from the technical idea of the present invention, make various changes and modifications. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A torsion tube electric welding tooling, characterized in that Comprising: Rotating cylinder (1); The first clamping mechanism (2), located at one end inside the rotating cylinder (1), and comprising: a first moving ring (21) and a plurality of first clamping components (22), a torsion tube (5) being adapted to be inserted into the first moving ring (21); The second clamping mechanism (3), located at the other end inside the rotating cylinder (1), and comprising: a second moving ring (31) and a plurality of second clamping components (32); A driving mechanism (4), connected to the rotating cylinder (1), adapted to drive the rotating cylinder (1) to rotate self - sufficiently so that the first moving ring (21) moves towards the second moving ring (31); wherein The first moving ring (21) drives each first clamping component (22) to clamp the torsion tube (5) through movement, and then drives the torsion tube (5) to move synchronously; After clamping the torsion tube (5), the first moving ring (21) moves to push the second moving ring (31) to move through movement, and the torsion tube (5) penetrates through the second moving ring (31) by differential movement with the second moving ring (31). Meanwhile, the second moving ring (31) drives each second clamping component (32) to pre - clamp the torsion tube (5) through movement, and then the end face of the torsion tube (5) is inclined by differential movement with the first moving ring (21); The first moving ring (21) is sleeved on the guiding shaft (11), and the side wall of the first moving ring (21) is threadedly connected to the inner wall of the rotating cylinder (1); Wherein, the driving mechanism (4) is adapted to drive the rotating cylinder (1) to rotate self - sufficiently so that the first moving ring (21) moves along the guiding shaft (11); The inner wall of one end of the rotating cylinder (1) is provided with a first guiding inclined surface (12); The first clamping components (22) are arranged radially along the first moving ring (21), and each comprises: a first clamping member (221) and a first return spring (222) sleeved on the first clamping member (221); The first return spring (222) is adapted to push the outer end of the first clamping member (221) to abut against the inner wall of the rotating cylinder (1); Wherein, the first moving ring (21) drives each first clamping member (221) to move radially along the first moving ring (21) through movement, so that the inner ends of the first clamping members (221) clamp the torsion tube (5); The inner wall of the other end of the rotating cylinder (1) is provided with a second guiding inclined surface (13); The second clamping components (32) are arranged radially along the second moving ring (31), and each comprises: a second clamping member (321) and a second return spring (322) sleeved on the second clamping member (321); The second return spring (322) is adapted to push the outer end of the second clamping member (321) to abut against the inner wall of the rotating cylinder (1); Wherein, the second moving ring (31) drives each second clamping member (321) to move radially along the second moving ring (31) through movement, so that the inner ends of the second clamping members (321) pre - clamp the torsion tube (5); A third spring (33) is sleeved on the guiding shaft (11), and the third spring (33) is located between the first moving ring (21) and the second moving ring (31); Wherein, the elastic coefficient of the third spring (33) is less than that of the second return spring (322), so that the first moving ring (21) and the second moving ring (31) move at different speeds.

2. The torsion tube electric welding tooling according to claim 1, characterized in that A plurality of guide plates (34) are arranged on one side of the second moving ring (31) facing the first moving ring (21); The guide plates (34) correspond to the second clamping members (321) one by one; A fourth return spring (341) is arranged on the guide plate (34), and the fourth return spring (341) is adapted to push the guide plate (34) against the second clamping member (321); Wherein, the second clamping member (321) drives the guide plate (34) to move radially to guide the torsion tube (5) into the second moving ring (31).

3. The torsion tube electric welding tooling according to claim 2, characterized in that After welding the inclined end face of the torsion tube (5), the driving mechanism (4) is adapted to drive the rotating cylinder (1) to rotate in the reverse direction so that the first moving ring (21) and the second moving ring (31) move back to their original positions; Wherein, the first moving ring (21) straightens the arched torsion tube (5) by moving at a different speed to inspect the welding quality.

4. A working method of the torsion tube electric welding tooling according to any one of claims 1-3, characterized in that, Comprising: The driving mechanism (4) drives the rotating cylinder (1) to rotate, so that the first moving ring (21) moves towards the second moving ring (31); The movement of the first moving ring (21) drives each first clamping assembly (22) to clamp the torsion tube (5), and then drives the torsion tube (5) to move synchronously; After clamping the torsion tube (5), the movement of the first moving ring (21) pushes the second moving ring (31) to move, and the torsion tube (5) passes through the second moving ring (31) by moving at a different speed from the second moving ring (31). At the same time, the movement of the second moving ring (31) drives each second clamping assembly (32) to pre-clamp the torsion tube (5), and then the end face of the torsion tube (5) is inclined by moving at a different speed from the first moving ring (21).

5. The working method of the torsion tube electric welding tooling according to claim 4, characterized in that By setting the elastic coefficient of the third spring (33) between the first moving ring (21) and the second moving ring (31) to be less than that of the second return spring (322) in the second clamping assembly (32), the first moving ring (21) and the second moving ring (31) move at different speeds.

6. The working method of the torsion tube electric welding tooling according to claim 5, characterized in that The welding quality of the torsion tube (5) is inspected by the return movement of the first moving ring (21).

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